Python Requests：proxy代理錯誤

目標：www.baidu.com

源碼：

import?requests


url?=?'http://www.baidu.com'


header?=?{
'User-Agent':?'Mozilla/5.0?(Windows?NT?6.1;?Win64;?x64)?AppleWebKit/537.36?(KHTML,?like?Gecko)?Chrome/76.0.3809.100?Safari/537.36'
????}

free_proxy?=?{
#都是http類型地址
##'http':?'163.204.241.160:9999'
'http':?'123.206.54.52:8118'
????}

response?=?requests.get(url=url,?headers=header,?proxies=free_proxy)
print(response.status_code)

使用代理'163.204.241.160:9999'出現

ProxyError：

Traceback?(most?recent?call?last):
??File?"D:\Software\python3.7.4\lib\site-packages\urllib3\connection.py",?line?160,?in?_new_conn
????(self._dns_host,?self.port),?self.timeout,?**extra_kw)
??File?"D:\Software\python3.7.4\lib\site-packages\urllib3\util\connection.py",?line?80,?in?create_connection
????raise?err
??File?"D:\Software\python3.7.4\lib\site-packages\urllib3\util\connection.py",?line?70,?in?create_connection
????sock.connect(sa)
ConnectionRefusedError:?[WinError?10061]?由于目標計算機積極拒絕，無法連接。

During?handling?of?the?above?exception,?another?exception?occurred:

Traceback?(most?recent?call?last):
??File?"D:\Software\python3.7.4\lib\site-packages\urllib3\connectionpool.py",?line?603,?in?urlopen
????chunked=chunked)
??File?"D:\Software\python3.7.4\lib\site-packages\urllib3\connectionpool.py",?line?355,?in?_make_request
????conn.request(method,?url,?**httplib_request_kw)
??File?"D:\Software\python3.7.4\lib\http\client.py",?line?1244,?in?request
????self._send_request(method,?url,?body,?headers,?encode_chunked)
??File?"D:\Software\python3.7.4\lib\http\client.py",?line?1290,?in?_send_request
????self.endheaders(body,?encode_chunked=encode_chunked)
??File?"D:\Software\python3.7.4\lib\http\client.py",?line?1239,?in?endheaders
????self._send_output(message_body,?encode_chunked=encode_chunked)
??File?"D:\Software\python3.7.4\lib\http\client.py",?line?1026,?in?_send_output
????self.send(msg)
??File?"D:\Software\python3.7.4\lib\http\client.py",?line?966,?in?send
????self.connect()
??File?"D:\Software\python3.7.4\lib\site-packages\urllib3\connection.py",?line?183,?in?connect
????conn?=?self._new_conn()
??File?"D:\Software\python3.7.4\lib\site-packages\urllib3\connection.py",?line?169,?in?_new_conn
????self,?"Failed?to?establish?a?new?connection:?%s"?%?e)
urllib3.exceptions.NewConnectionError:?<urllib3.connection.HTTPConnection?object?at?0x0000000003A6F048>:?Failed?to?establish?a?new?connection:?[WinError?10061]?由于目標計算機積極拒絕，無法連接。

During?handling?of?the?above?exception,?another?exception?occurred:

Traceback?(most?recent?call?last):
??File?"D:\Software\python3.7.4\lib\site-packages\requests\adapters.py",?line?449,?in?send
????timeout=timeout
??File?"D:\Software\python3.7.4\lib\site-packages\urllib3\connectionpool.py",?line?641,?in?urlopen
????_stacktrace=sys.exc_info()[2])
??File?"D:\Software\python3.7.4\lib\site-packages\urllib3\util\retry.py",?line?399,?in?increment
????raise?MaxRetryError(_pool,?url,?error?or?ResponseError(cause))
urllib3.exceptions.MaxRetryError:?HTTPConnectionPool(host='182.34.33.38',?port=9999):?Max?retries?exceeded?with?url:?http://www.baidu.com/?(Caused?by?ProxyError('Cannot?connect?to?proxy.',?NewConnectionError('<urllib3.connection.HTTPConnection?object?at?0x0000000003A6F048>:?Failed?to?establish?a?new?connection:?[WinError?10061]?由于目標計算機積極拒絕，無法連接。')))

During?handling?of?the?above?exception,?another?exception?occurred:

Traceback?(most?recent?call?last):
??File?"D:/Study/工作/待解決問題/requests/requests_proxy.py",?line?15,?in?<module>
????response?=?requests.get(url=url,?headers=header,?proxies=free_proxy)
??File?"D:\Software\python3.7.4\lib\site-packages\requests\api.py",?line?75,?in?get
????return?request('get',?url,?params=params,?**kwargs)
??File?"D:\Software\python3.7.4\lib\site-packages\requests\api.py",?line?60,?in?request
????return?session.request(method=method,?url=url,?**kwargs)
??File?"D:\Software\python3.7.4\lib\site-packages\requests\sessions.py",?line?533,?in?request
????resp?=?self.send(prep,?**send_kwargs)
??File?"D:\Software\python3.7.4\lib\site-packages\requests\sessions.py",?line?646,?in?send
????r?=?adapter.send(request,?**kwargs)
??File?"D:\Software\python3.7.4\lib\site-packages\requests\adapters.py",?line?510,?in?send
????raise?ProxyError(e,?request=request)
requests.exceptions.ProxyError:?HTTPConnectionPool(host='182.34.33.38',?port=9999):?Max?retries?exceeded?with?url:?http://www.baidu.com/?(Caused?by?ProxyError('Cannot?connect?to?proxy.',?NewConnectionError('<urllib3.connection.HTTPConnection?object?at?0x0000000003A6F048>:?Failed?to?establish?a?new?connection:?[WinError?10061]?由于目標計算機積極拒絕，無法連接。')))

查過自己電腦網絡配置中沒有設置代理。

使用代理'123.206.54.52:8118'出現

ChunkedEncodingError：

Traceback?(most?recent?call?last):
??File?"D:\Software\python3.7.4\lib\site-packages\urllib3\response.py",?line?397,?in?_error_catcher
????yield
??File?"D:\Software\python3.7.4\lib\site-packages\urllib3\response.py",?line?479,?in?read
????data?=?self._fp.read(amt)
??File?"D:\Software\python3.7.4\lib\http\client.py",?line?457,?in?read
????n?=?self.readinto(b)
??File?"D:\Software\python3.7.4\lib\http\client.py",?line?501,?in?readinto
????n?=?self.fp.readinto(b)
??File?"D:\Software\python3.7.4\lib\socket.py",?line?589,?in?readinto
????return?self._sock.recv_into(b)
ConnectionResetError:?[WinError?10054]?遠程主機強迫關閉了一個現有的連接。

During?handling?of?the?above?exception,?another?exception?occurred:

Traceback?(most?recent?call?last):
??File?"D:\Software\python3.7.4\lib\site-packages\requests\models.py",?line?750,?in?generate
????for?chunk?in?self.raw.stream(chunk_size,?decode_content=True):
??File?"D:\Software\python3.7.4\lib\site-packages\urllib3\response.py",?line?531,?in?stream
????data?=?self.read(amt=amt,?decode_content=decode_content)
??File?"D:\Software\python3.7.4\lib\site-packages\urllib3\response.py",?line?496,?in?read
????raise?IncompleteRead(self._fp_bytes_read,?self.length_remaining)
??File?"D:\Software\python3.7.4\lib\contextlib.py",?line?130,?in?__exit__
????self.gen.throw(type,?value,?traceback)
??File?"D:\Software\python3.7.4\lib\site-packages\urllib3\response.py",?line?415,?in?_error_catcher
????raise?ProtocolError('Connection?broken:?%r'?%?e,?e)
urllib3.exceptions.ProtocolError:?("Connection?broken:?ConnectionResetError(10054,?'遠程主機強迫關閉了一個現有的連接。',?None,?10054,?None)",?ConnectionResetError(10054,?'遠程主機強迫關閉了一個現有的連接。',?None,?10054,?None))

During?handling?of?the?above?exception,?another?exception?occurred:

Traceback?(most?recent?call?last):
??File?"D:/Study/工作/待解決問題/requests/requests_proxy.py",?line?16,?in?<module>
????response?=?requests.get(url=url,?headers=header,?proxies=free_proxy)
??File?"D:\Software\python3.7.4\lib\site-packages\requests\api.py",?line?75,?in?get
????return?request('get',?url,?params=params,?**kwargs)
??File?"D:\Software\python3.7.4\lib\site-packages\requests\api.py",?line?60,?in?request
????return?session.request(method=method,?url=url,?**kwargs)
??File?"D:\Software\python3.7.4\lib\site-packages\requests\sessions.py",?line?533,?in?request
????resp?=?self.send(prep,?**send_kwargs)
??File?"D:\Software\python3.7.4\lib\site-packages\requests\sessions.py",?line?686,?in?send
????r.content
??File?"D:\Software\python3.7.4\lib\site-packages\requests\models.py",?line?828,?in?content
????self._content?=?b''.join(self.iter_content(CONTENT_CHUNK_SIZE))?or?b''
??File?"D:\Software\python3.7.4\lib\site-packages\requests\models.py",?line?753,?in?generate
????raise?ChunkedEncodingError(e)
requests.exceptions.ChunkedEncodingError:?("Connection?broken:?ConnectionResetError(10054,?'遠程主機強迫關閉了一個現有的連接。',?None,?10054,?None)",?ConnectionResetError(10054,?'遠程主機強迫關閉了一個現有的連接。',?None,?10054,?None))

推薦閱讀：https://blog.csdn.net/wangzuxi/article/details/40377467??

最后，將url = 'http://www.baidu.com'?改成?url =?'https://www.baidu.com'，?使用以上兩個代理地址測試都能成功，結果：200

-----

換了一個新的代理： 'http': '47.93.36.195:8118'?

url = 'http://www.baidu.com'?

多次運行，返回狀態有200,503，還有ChunkedEncodingError

由此可見，ChunkedEncodingError錯誤并不是代理問題，為穩定，還是將url改為https為好。